1618657-54-7

Basic information

• Product Name: η⁵-C₅Me₅*Ta[N(ⁱPr)C(Ph)N(ⁱPr)]Cl₃
• Synonyms: η⁵-C₅Me₅*Ta[N(ⁱPr)C(Ph)N(ⁱPr)]Cl₃
• CAS NO: 1618657-54-7
• Molecular Weight: 625.843
• Mol File: 1618657-54-7.mol

Chemical Properties

• CAS DataBase Reference: η⁵-C₅Me₅*Ta[N(ⁱPr)C(Ph)N(ⁱPr)]Cl₃(CAS DataBase Reference)
• NIST Chemistry Reference: η⁵-C₅Me₅*Ta[N(ⁱPr)C(Ph)N(ⁱPr)]Cl₃(1618657-54-7)
• EPA Substance Registry System: η⁵-C₅Me₅*Ta[N(ⁱPr)C(Ph)N(ⁱPr)]Cl₃(1618657-54-7)

Safety Data

• Hazardous Substances Data: 1618657-54-7(Hazardous Substances Data)

Downstream Products

• 1618657-60-5 {η⁵-C₅Me₅*Ta[N(ⁱPr)C(Ph)N(ⁱPr)]}₂(μ-η¹:η¹-N₂) 

Relevant articles and documents

Fine-tuning the energy barrier for metal-mediated dinitrogen N≡N bond cleavage

Experimental data support a mechanism for N≡N bond cleavage within a series of group 5 bimetallic dinitrogen complexes of general formula, {Cp*M[N(iPr)C(R)N(iPr)]}2(μ-N 2) (Cp* = η5-C5Me5) (M = Nb, Ta), that proceeds in solution through an intramolecular end-on-bridged (μ- η1:η1-N 2) to side-on-bridged (μ- η2: η2-N2) isomerization process to quantitatively provide the corresponding bimetallic bis(μ-nitrido) complexes, {Cp*M[N( iPr)C(R)N(iPr)](μ-N)}2. It is further demonstrated that subtle changes in the steric and electronic features of the distal R-substituent, where R = Me, Ph and NMe2, can serve to modulate the magnitude of the free energy barrier height for N≡N bond cleavage as assessed by kinetic studies and experimentally derived activation parameters. The origin of the contrasting kinetic stability of the first-row congener, {Cp*V[N(iPr)C(Me)N(iPr)]} 2(μ- η1:η1-N2) toward N≡N bond cleavage is rationalized in terms of a ground-state electronic structure that favors a significantly less-reduced μ-N2 fragment.